Cell lines that stably or transiently express a functional umami (T1R1/T1R3) taste receptor
US7364903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2003 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Sep 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2500/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to the discovery that the T1R receptors assemble to form functional taste receptors. Particularly, it has been discovered that co-expression of T1R1 and T1R3 results in a taste receptor that responds to umami taste stimuli, including monosodium glutamate. Also, it has been discovered that co-expression of the T1R2 and T1R3 receptors results in a taste receptor that responds to sweet taste stimuli including naturally occurring and artificial sweeteners.Also the present invention relates to the use of hetero-oligomeric taste receptors comprising T1R1/T1R3 and T1R2/T1R3 in assays to identify compounds that respectively respond to umami taste stimuli and sweet taste stimuli.Further, the invention relates to the constitutive of cell lines that stably or transiently co-express a combination of T1R1 and T1R3; or T1R2 and T1R3; under constitutive or inducible conditions. The use of these cells lines in cell-based assays to identify umami and sweet taste modulatory compounds is also provided, particularly high throughput screening assays that detect receptor activity by use of fluorometric imaging.Finally, the invention relates to the discovery that some compou…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.